摘要
通过改进gamma常数、白平衡等设定值获取线性度较好的火焰辐射数值图像,并绘制等高线研究火焰场状态特性。采用变动等高线阶值的方法研究打火机火焰静态图像等高线的变化,获得了火焰主燃烧区、气流上升区和外层炽热层等区块的发光等高线分布图。研究发现火焰中炽热、燃烧性气流分布图与等线绘制中色阶值取值之间的关联,拓展了高线应用范围,为温度场分布研究打下了基础。
This paper discusses various isohypse of inner digital frame diagram through getting nearly linear digital colour photos with the suitable white balance and gamma can stant. We'll see isochromatic curve and isothermal diagram from it by computer. It is found that the convection and hot gas stream above the jet of lighter through analysis of radiation contour line with different value. It could be studied that the laminal flow and boundary layer in fire through contour line changing with different colour value in computer.
出处
《杭州电子工业学院学报》
2003年第1期1-4,共4页
Journal of Hangzhou Institute of Electronic Engineering
基金
浙江省教育厅科研计划(20020202)
信息产业部电科院预研基金57.7.6.18
关键词
火焰
辐射
等高线
数字图像
色阶值
等温线
温度分布
Isohypse/Contour line
Digital diagram
Colour step
Radiation
Isothermal line
Fire/Frame
